Governor-controlled friction-clutch.



A. G. HINZ.

GOVERNOR CONTROLLED FRICTION CLUTCH. APPLICATION FILED JUNE 6, 1910.

@ 7 9? Patented Mar.28,1911,

z SHEETS-SHEET 1v hisAtloza zcysj flan/2% A n I A. G. HINZ.

GOVERNOR CONTROLLED FRICTION GLUTGH.

Patented 111211128, 1911.

APPLICATION TILED JUNE 6,1910.

W w H i W/ m W y H W J B w W v. 1

v the former is provided with an annular fricspectively to the'disk 1and ring 7 by screws of the levers 9 engage seats formed in a frictionclutch. and to this end, the inven adj accnt face of the driving disk t.A simia multiplicity of laterally projecting arms ALBERT G. HINZ, OFTMINNEAPOLIS, IVIINNESO'IA.

A eovnnnon-oonrnoiarnn riim rIoN-oLU'roH.

lie it known that l, ALBERT Gr. 'HINZ, a citizen of the United States,residing at Minneapolis, in the county of llenncpin and State ofillinnesota, have invented certain new and useful lm n'ovemcnts inGovernor- Controlled FrictioirClutches; and I do hercby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to' which it appertains tomakc'and use the same.

31y nivention has for its object to provide a, simple and etticient,Q'OVBIIH)1'('0Iltl0lll To all whom it may concern: l

tion consists of the novel devices and combination" of deviceshereinafter described and defined in the claims. v

in the accompanying drawings which illustrate the invention. likecharacters indicate like parts throughout the several views.

Referring to the drawings: Figure 1 is a view chiefly in verticalsection, but with some parts in full elevation, showing a fric tionclutch and cooperating governor arranged in accordance with myinvention; Fig. 2 is a view partly in plan and partly in horizontalaction, showing the improved clutch mechanism, some parts being brokenaway; and Fig. 3 is a view in elevation,looking at the face of theclutch engaged disk or driving member.

In the drawings, a rotary driven member in the form of a disk 1 isprovided with a sleeve like hub This hub 52 is rotatively mounted on adriving shaft 3. The driving member as shown, is also in the form of adisk 4, the hub of which is rigidly secured to the said shaft 3. The twodisk like menn bers 1 and 4 are slightly spaced apart, and

tion plate or ring 5 that engages with the lar friction ring 6 engagesthe opposite face of said disk 4, and this ring is shown as secured to ametallic supporting ring 7 having of long lugs 8. The rings 5 ahd 6 areboth preferably constructed from Wood fiber, and as. shown, they aredetachably secured re-- 8. The outer ends of the clutch levers 9 arepivoted to the endsof the lugs8 and are also pivoted to brackets 10secured to the driven member or disk 1. The inneY ends SpeeificationbtLe-tters Paten 2 Application filed June 6,1910.

,made adjustable by Patented l'tlal. 28, ion. Serial No. 565,178.

shipper ring 11, that is mounted to slide on the sleeve 2. Rigid ysecured on the sleeve as shown by means of the said screw 12,

'is a collar 13, having bifurcated lugs to which belt-crank levers 1 1are pivoted. The short inturned ends of the bell-cranks 14 are seated inthe shipper ring 11, while quite heavy weights 15 are applied to thelong and approximately parallel ends of the'saidbellcranks. \Preterably,the weights 15 are adjustablysecurcd on the bellcranks 14, by means ofset screws 16. The two Weights 15 are connected by one or more tensionsprings 17. the said connection being preferably nut equipped couplingbolts 18 applied to the ends of the said spring and passed throughperforated cars 1.9 on the said weights. The tension of spring'lT drawsthe weights 15 toward each other, and, acting through the bell-cranks 14and clutch levers 9, normally presses the friction rings 5 and 6 tightlyagainst the opposite faces of the driving disk ,4. Hence, as is evident,the rotation of the driving member 1 will rotate the driven member 1until a certain pre-determined speed throws the weights 15 apart againstthe tension of the Spring, and thereby releases the triotion rings 5 and6 from the said driving member 4. Hence, the driving member, whenrunning above the desired speed, will rotate the driven member only atthe predetermined maximum speed. This predetermined maximum speed may bevaried either by adjustments of the weights 15 on the bellcranks or byadjustments of the tension of the spring or springs 17.

The shaft 3 being'secured for rotation. with the disk 4, serves as apart of the'driving member and may be assumed to be an engine crankshaft.- Power supplied from. an engine or motor may be transmitted tothe so-called driving member of the clutch mechanism in variousdifferent Ways. As shown in the drawings, a pulley 20 is detachablysecured thereto by machine screws 21.- Pulleys of difierent size orsuitable sprockets may, When desired, be substituted for the pulleyshown in Fig. 1 of the drawings.

It is sometimes desirable to throw the clutch out of action for aconsiderable period of time. To provide a simple device foraccomplishing this While the clutch mechansm is in motion, a. trippingcollar 22 is slidably mounted on the sleeve 2 and is proare air.

, vided with beveled cam lugs 23, which, as

shown, engage grooves 24:, formed in the inner faces of the weights 15.A hand wheel 25 is swiveled on the outer end of the trip collar 22 andis adapted to be held in the hand and used to slide the collar 22 intoand out of an operative position while the said collar 22 is beingrotated with the sleeve 2. v

I also provide improved devices for supplying oil to the frictional yengaging surfaces of the members 4, 5 and 6. For this oil, the deviceincludes an oil supply cup 26, provided with a tubular stem threadedinto the end of the shaft 3 and communicating with an axial oil passage27 of said shaft. The oil passage 27 terminates into a'radially extendedinner extremity that communicates with an oil passage 28 formed in, andextended radially of the driving disk 4. The outer extremity of thepassage 28 is connected to a zigzag oil channel or passage 29 formed inand extending around the disk 4. This zigzag oi channel ZDunakes acomplete circuit from the outer extremity vof passage 28, varies itsdistance from the axis of said disk 4:, and has its sections or channelsopened alternately, first'at one side and then at the other of said diskl. This gives. a good supply of oil over that entire surface of saiddisk 4: which is engaged by the friction rings 5 and 6.

A governor actuated friction clutch of the character described iscapable of general use wherever it is desirable to limit the maximumspeed of a machine or mechanism. One of the best examples of this isfound where dynamos are driven from explosive engines. The speed of anexplosive engine is liable to vary to a considerable extent and if-adynamo be driven beyond a predetermined maximum speed at which it isdesigned to run, it is liable to be burned out. A governor-controlledfriction 'clutchsuch as described, when used in the power transmissionmechanism between an explosive englue and a dynamo, removes all dangerdue to excessive speed of the dyname and furthermore, prevents'certainfluctuations in the circuitsupplied by the dynamo, such as often arenoticed in electric light service, when excessive dynamo speed isproduced. The cluteh mechanism, however, as already indicated, will befounchserviceable in numerous other places. For instance, fanning millsand cream separators, should not, for well known reasons, be drivenabove predetermined speeds.

.i sews? lVhat I claim is: 1. The comblnation with rotary driving anddriven members, of a friction clutch ,normally connecting the saidmembers for common rotation, a centrifugal governor, with connectionsnormally holding said clutch operative, and a governor tripping deviceoperative on said governor at will, to cause the same to release saidclutch.

2. The combination with rotary driving and driven members, the latterhaving a sleeve like hub, of a friction clutch nor mally connecting saiddriving and driven members for common rotation, a centrifugal governorwith connections for actuating said clutch, said governor comprising apair of weighted levers carried by the hub of said driving member, aspring yieldingly drawing said levers toward said hub, a tripping collarslidably mounted on said hub and having cam lugs engaging the saidweighted levers, and an end piece swiveled to the said tripping collar.

3. The combination with a driving disk and a driven disk, of a pair offriction rings engageable with the opposite faces of'said driven disk,one of said friction rings being secured to the said driven disk and theother being loose, levers pivotally connected to projections from saidloose friction ring and from said driving disk, a shipper ring slidablymounted on the hub of said driven member and engageable with the innerends of the said clutch levers, and a centrifugal governor carried bythe hub of said driven member, connected to said shipper ring andprovided with a spring operating through said connections to normallyhold said friction rings clamped onto the said driven disk.

4. The combination with a shaft, of a driven member rotatively mountedon said shaft, a. disk like driving member secured to said shaft, aclutch for connecting the said driving and driven members, and includingfriction rings engageable with the opposite faces of said driving disk,an oil cup applied to one end of said shaft, and-an oil delivery passageextending axially of said shaft, thence radially outward in said drivingdisk, and thence terminating in a zigzag oil channel opening alternatelyat the opposite faces of said driving disk.

In testimony whereof I aflix my signature in presence of two witnesses.ALBERT G. HINZ. Witnesses:

ALICE S. WILLIAMS, HARRY D. Knioonn.

